Air conditioner refrigerant composition suitable for automobile and air conditioner system

Abstract

The invention discloses an air conditioner refrigerant composition suitable for an automobile and an air conditioner system, and relates to the technical field of air conditioner refrigerants. The air conditioner refrigerant composition suitable for the automobile is prepared from the following components: 3, 3, 3-trifluoropropyne, propylene, 2, 3, 3, 3-tetrafluoropropene and difluoromethane. According to the air conditioner refrigerant composition suitable for the automobile and the air conditioner system, the GWP of the air conditioner refrigerant composition is smaller than 150, the ODP of the air conditioner refrigerant composition is 0, the air conditioner refrigerant composition has the obvious environmental protection advantage and the characteristic of low boiling point, it can be guaranteed that heat is absorbed more easily in the low-temperature environment, the air conditioner refrigerant composition has the larger volume refrigerating capacity, and the size of a compressor is further reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioner refrigerant, in particular to an air conditioner refrigerant composition suitable for automobile and air conditioner system. BACKGROUND

[0002] With the increasingly stringent environmental requirements, Europe has required that the GWP (Global Warming Potential) value of the refrigerant of automobile air conditioner be lower than 150. As a big country of producing automobiles, the mainstream refrigerant of domestic automobile is still R134a at present, and the GWP value of R134a is as high as 1300, which is difficult to meet the relevant requirements of future environmental protection policy, and the boiling point temperature of R134a is -26℃, which is relatively low in winter, resulting in that the heating effect is not ideal in winter. Therefore, it is gradually put on the agenda to find an environmentally friendly refrigerant with lower GWP and lower boiling point. SUMMARY

[0003] The technical problems to be solved by the present application are: 1. The GWP value of R134a is as high as 1300, which is not environmentally friendly; 2. The boiling point of R134a is relatively low, and the low-temperature heating effect is not ideal; 3. The volumetric refrigeration capacity of R134a is low. In order to solve the above technical problems, the present application provides an air conditioner refrigerant composition suitable for automobile and air conditioner system. The main components of the air conditioner refrigerant composition are 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropylene (R1234yf) and difluoromethane (R32), which has a GWP value lower than 150, is more environmentally friendly, has a boiling point lower than -50℃, has a larger volumetric refrigeration capacity, and has a temperature slip less than 2.5℃. The air conditioner refrigerant composition has the advantages of low GWP, large volumetric refrigeration capacity and low boiling point, and can be used for temperature regulation and air conditioning of passenger compartment of new energy electric vehicles or hybrid electric vehicles.

[0004] Specifically, the following technical solutions are included: In a first aspect, an air conditioner refrigerant composition suitable for automobile is provided, which comprises the following components: 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropylene (R1234yf) and difluoromethane (R32).

[0005] Preferably, the air conditioner refrigerant composition suitable for automobile is composed of the following components: 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane.

[0006] Preferably, the mass ratio of 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is (52-80):(4-40):(4-8):(4-16).

[0007] The application provides a four-component environmentally-friendly mixed refrigerant which can replace R134a. (1) The mixed refrigerant has zero ozone depletion potential (ODP) value and global warming potential (GWP) value less than 150, and excellent environmental performance; (2) The performance is equivalent to that of R134a, and the mixed refrigerant has greater volumetric refrigeration capacity, which helps to further reduce the volume of the compressor; the boiling point is lower than -50℃, and the mixed refrigerant can more easily absorb heat in a low-temperature environment, and the temperature glide is less than 2.5℃.

[0008] Further, the mass percentage of 3,3,3-trifluoropropynyl in the air conditioner refrigerant composition for vehicles is 52-80%.

[0009] Further, the mass percentage of propylene in the air conditioner refrigerant composition for vehicles is 4-40%.

[0010] Further, the mass percentage of 2,3,3,3-tetrafluoropropene in the air conditioner refrigerant composition for vehicles is 4-8%.

[0011] Further, the mass percentage of difluoromethane in the air conditioner refrigerant composition for vehicles is 4-16%.

[0012] Further, the air conditioner refrigerant composition for vehicles comprises the following components in terms of mass percentage: 3,3,3-trifluoropropynyl 50-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropene 3-8% and difluoromethane 4-16%.

[0013] Further, the air conditioner refrigerant composition for vehicles comprises the following components in terms of mass percentage: 3,3,3-trifluoropropynyl 52-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropene 4-8% and difluoromethane 4-16%.

[0014] Further, the air conditioner refrigerant composition for vehicles comprises the following components in terms of mass percentage: 3,3,3-trifluoropropynyl 52-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropene 4-8% and difluoromethane 4-16%.

[0015] Preferably, the mass ratio of 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.52:0.32:0.08:0.08.

[0016] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.56:0.28:0.08:0.08.

[0017] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.68:0.16:0.08:0.08.

[0018] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.8:0.08:0.08:0.04.

[0019] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.52:0.4:0.04:0.04.

[0020] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.72:0.08:0.04:0.16.

[0021] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.8:0.08:0.04:0.08.

[0022] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.76:0.04:0.04:0.16.

[0023] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.6:0.24:0.04:0.12.

[0024] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.64:0.16:0.04:0.16.

[0025] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.52:0.28:0.08:0.12.

[0026] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropene and difluoromethane is 0.60:0.2:0.08:0.12.

[0027] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.64:0.24:0.08:0.04.

[0028] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.72:0.16:0.08:0.04.

[0029] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.72:0.04:0.08:0.16.

[0030] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.52:0.28:0.04:0.16.

[0031] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.60:0.32:0.04:0.04.

[0032] Preferably, the mass ratio of the 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane is 0.64:0.24:0.04:0.08.

[0033] Among them, each component of the air conditioner refrigerant composition suitable for a car has the following effects: 1. The GWP values of TFP, R1270 and R1234yf are low, and the mixed formula GWP value is low after mixing, which has environmental protection advantages. However, the boiling point of R1234yf is relatively high, and the boiling point of the mixture can be ensured to be lower than the target value through the low boiling point combination of TFP, R1270 and R32.

[0034] 2. TFP, R1270 and R32 have higher relative volumetric refrigerating capacity than R134a, and the volumetric refrigerating capacity of the whole formula is ensured to be about 1.7-2 times through mixing.

[0035] 3. R32 has the best relative volumetric refrigerating capacity and COP, but its GWP is relatively high, R1234yf has a relatively low GWP, but its boiling point is relatively high, and the relative performance of TFP and R1270 is relatively good, and the mixing ratio of the four components needs to be comprehensively analyzed and selected to achieve the preset target.

[0036] Preferably, the preparation method of the air conditioner refrigerant composition suitable for automobile comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in liquid phase at room temperature (25 DEG C) according to the corresponding mass ratio, and the sum of the mass percentage concentration of each component is 100%.

[0037] Further, the air conditioner refrigerant composition suitable for automobile has a GWP value less than 150, a boiling point lower than -50 DEG C and a temperature glide less than 2.5 DEG C.

[0038] In the second aspect, the air conditioner system comprises the air conditioner refrigerant composition suitable for automobile.

[0039] Preferably, the air conditioner system is a vehicle air conditioner system.

[0040] The air conditioner refrigerant composition suitable for automobile has the following advantages: The present application provides an air conditioner refrigerant composition suitable for automobile and an air conditioner system, the air conditioner refrigerant composition has a GWP less than 150, an ODP of 0, obvious environmental protection advantages, a low boiling point, can absorb heat more easily in low temperature environment, has a larger volume refrigeration capacity, and helps to further reduce the volume of the compressor. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0042] Figure 1 The air conditioner system of the present application; Marked in the figure: 1-compressor; 2-four-way reversing valve; 3-evaporator; 4-solenoid valve; 5-condenser; 6-first fan; 7-second fan. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0044] It should be understood that the terms "comprises" and "comprising," when used in this specification and the following claims, indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0045] It should also be understood that the terms used herein are for the purpose of describing particular embodiments and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0046] It should further be understood that the term "and / or" used in the present specification and the appended claims is intended to mean an inclusion of one or more of the associated items, as well as all possible combinations of those items.

[0047] In addition, it should be noted that the use of "first", "second", and the like words to describe components is merely intended to differentiate the components from one another, and the words do not have special meanings unless otherwise stated. Therefore, the words should not be interpreted as limiting the scope of the present application.

[0048] In order to more fully understand the technical content of the present application, the technical solutions of the present application are further introduced and described below in combination with specific embodiments.

[0049] According to the embodiments of the present application, a kind of air conditioner refrigerant composition suitable for automobile is provided, the air conditioner refrigerant composition suitable for automobile includes 3,3,3-trifluoropropyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropylene (R1234yf) and difluoromethane (R32).

[0050] Wherein, the air conditioner refrigerant composition suitable for automobile includes the following components by mass percentage: 3,3,3-trifluoropropyl 52-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropylene 4-8% and difluoromethane 4-16%.

[0051] The air conditioner refrigerant composition suitable for automobile of the present application has a GWP value lower than 150, is more environmentally friendly, has a boiling point lower than-50 DEG C, has a larger volumetric refrigeration capacity, and has a temperature glide less than 2.5 DEG C, compared with R134a. The air conditioner refrigerant composition has the advantages of low GWP, large volumetric refrigeration capacity and low boiling point, and can be used for temperature regulation and air conditioning of passenger compartment of new energy electric vehicles or hybrid electric vehicles.

[0052] The application also provides an air conditioning system, which comprises the air conditioning refrigerant composition for vehicles.

[0053] The air conditioning system is physically mixed with 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropylene (R1234yf) and difluoromethane (R32) in a liquid phase at room temperature according to corresponding mass ratios.

[0054] Preferably, the air conditioning system is a vehicle air conditioning system.

[0055] Preferably, the air conditioning system comprises a compressor 1, a four-way reversing valve 2, an evaporator 3, an electromagnetic valve 4, a condenser 5 and a fan. The air conditioning refrigerant composition for vehicles is applied in the condenser.

[0056] Figure 1 The air conditioning system of the application. The compressor 1 is connected with the four-way reversing valve 2, the evaporator 3 is connected with one end of the condenser 5 through the four-way reversing valve 2, and the evaporator 3 is connected with the other end of the condenser 5 through the electromagnetic valve 4. The condenser 5 / evaporator 3 is cooled / absorbed by the fan, which comprises a first fan 6 and a second fan 7. The condenser 5 is connected with the first fan 6, and the evaporator 3 is connected with the second fan 7. The selected design working condition is that the evaporator 3 evaporates at 10℃, the condenser 5 condenses at 40℃, the gas phase at the outlet of the evaporator 3 is superheated with a superheat degree of 5℃, the liquid phase at the outlet of the condenser 5 is subcooled with a subcooling degree of 5℃, and the adiabatic efficiency of the compressor is 0.75.

[0057] The basic parameters of each component used in the air conditioning refrigerant composition for vehicles of the application are shown in Table 1 below: Table 1 Basic parameters of each component used in the air conditioning refrigerant composition for vehicles The air conditioning refrigerant composition for vehicles of the embodiment of the application is a quaternary mixed refrigerant, the GWP is less than 150, the capacity and energy efficiency of the air conditioning refrigerant unit using the composition are equivalent to or even better than those of the unit using R134a refrigerant, and the temperature glide is less than 2.5℃.

[0058] The application is further illustrated by examples and comparative examples.

[0059] The formula (mass ratio) of the air conditioning refrigerant composition for vehicles of Examples 1-18 is shown in Table 2 below: Table 2 Formula of the air conditioning refrigerant composition for vehicles of Examples 1-18 wherein: Example 1 Provided is an air conditioner refrigerant composition suitable for use in automobiles, consisting of the following components by mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.52%, propylene (R1270) 0.32%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.08%.

[0060] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles, comprising the following steps: 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) are physically mixed in liquid phase state at room temperature (25℃) according to the corresponding mass ratio, and then obtained.

[0061] Example 2 Provided is an air conditioner refrigerant composition suitable for use in automobiles, consisting of the following components by mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.56%, propylene (R1270) 0.28%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.08%.

[0062] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles, comprising the following steps: 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) are physically mixed in liquid phase state at room temperature (25℃) according to the corresponding mass ratio, and then obtained.

[0063] Example 3 Provided is an air conditioner refrigerant composition suitable for use in automobiles, consisting of the following components by mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.68%, propylene (R1270) 0.16%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.08%.

[0064] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles, comprising the following steps: 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) are physically mixed in liquid phase state at room temperature (25℃) according to the corresponding mass ratio, and then obtained.

[0065] Example 4 Provided is an air conditioner refrigerant composition suitable for automobiles, which is composed of 3,3,3-trifluoropropynyl (TFP) 0.8%, propylene (R1270) 0.08%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.04% by mass percentage.

[0066] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the composition.

[0067] Example 5 Provided is an air conditioner refrigerant composition suitable for automobiles, which is composed of 3,3,3-trifluoropropynyl (TFP) 0.52%, propylene (R1270) 0.4%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.04% by mass percentage.

[0068] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the composition.

[0069] Example 6 Provided is an air conditioner refrigerant composition suitable for automobiles, which is composed of 3,3,3-trifluoropropynyl (TFP) 0.72%, propylene (R1270) 0.08%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.16% by mass percentage.

[0070] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the composition.

[0071] Example 7 Provided is an air conditioner refrigerant composition suitable for automobiles, which is composed of 3,3,3-trifluoropropynyl (TFP) 0.8%, propylene (R1270) 0.08%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.08% by mass percentage.

[0072] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0073] Example 8 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.76%, propylene (R1270) 0.04%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.16%.

[0074] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0075] Example 9 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.6%, propylene (R1270) 0.24%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.12%.

[0076] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0077] Example 10 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.64%, propylene (R1270) 0.16%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.16%.

[0078] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0079] Example 11 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.52%, propylene (R1270) 0.28%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.12%.

[0080] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0081] Example 12 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.60%, propylene (R1270) 0.2%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.12%.

[0082] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0083] Example 13 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.64%, propylene (R1270) 0.24%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.04%.

[0084] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0085] Example 14 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.72%, propylene (R1270) 0.16%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.04%.

[0086] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0087] Example 15 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.72%, propylene (R1270) 0.04%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.08% and difluoromethane 0.16%.

[0088] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0089] Example 16 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.52%, propylene (R1270) 0.28%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.16%.

[0090] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0091] Example 17 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.60%, propylene (R1270) 0.32%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.04%.

[0092] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0093] Example 18 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.64%, propylene (R1270) 0.24%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.04% and difluoromethane 0.08%.

[0094] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0095] The formula (mass ratio) of the air conditioner refrigerant composition suitable for automobiles of Comparative Examples 1-14 is shown in the following Table 3: Table 3 Formula of air conditioner refrigerant composition suitable for automobiles of Comparative Examples 1-14 Wherein: Comparative Example 1 Provided is an air conditioner refrigerant composition suitable for use in automobiles, which is composed of the following components in mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.1%, propylene (R1270) 0.2%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.4%, and difluoromethane 0.3%.

[0096] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf), and difluoromethane (R32) in liquid phase at room temperature (25°C) according to the corresponding mass ratio, and obtaining the composition.

[0097] Comparative Example 2 Provided is an air conditioner refrigerant composition suitable for use in automobiles, which is composed of the following components in mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.2%, propylene (R1270) 0.2%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.3%, and difluoromethane 0.3%.

[0098] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf), and difluoromethane (R32) in liquid phase at room temperature (25°C) according to the corresponding mass ratio, and obtaining the composition.

[0099] Comparative Example 3 Provided is an air conditioner refrigerant composition suitable for use in automobiles, which is composed of the following components in mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.1%, propylene (R1270) 0.1%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.2%, and difluoromethane 0.6%.

[0100] The preparation method of the air conditioner refrigerant composition suitable for use in automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf), and difluoromethane (R32) in liquid phase at room temperature (25°C) according to the corresponding mass ratio, and obtaining the composition.

[0101] Comparative Example 4 Provided is an air conditioner refrigerant composition suitable for use in automobiles, which is composed of the following components in mass percentage: 3,3,3-trifluoropropynyl (TFP) 0.3%, propylene (R1270) 0.1%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.2%, and difluoromethane 0.4%.

[0102] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0103] Comparative Example 5 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.1%, propylene (R1270) 0.55%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.1% and difluoromethane 0.25%.

[0104] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0105] Comparative Example 6 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.2%, propylene (R1270) 0.25%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.3% and difluoromethane 0.25%.

[0106] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0107] Comparative Example 7 The air conditioner refrigerant composition suitable for automobiles comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.15%, propylene (R1270) 0.15%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.4% and difluoromethane 0.3%.

[0108] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0109] Comparative Example 8 The air conditioner refrigerant composition suitable for automobiles is provided, which is composed of the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.4%, propylene (R1270) 0.1%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.15% and difluoromethane 0.35%.

[0110] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0111] Comparative Example 9 The air conditioner refrigerant composition suitable for automobiles is provided, which is composed of the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.2%, propylene (R1270) 0.2%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.2% and difluoromethane 0.4%.

[0112] The preparation method of the air conditioner refrigerant composition suitable for automobiles comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios, and obtaining the air conditioner refrigerant composition suitable for automobiles.

[0113] Comparative Example 10 The air conditioner refrigerant composition suitable for automobiles is provided, which is composed of the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.3%, propylene (R1270) 0.1%, 2,3,3,3-tetrafluoropropene (R1234yf) 0.1% and difluoromethane 0.5%.

[0114] The preparation method of the air conditioner refrigerant composition suitable for automobile comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in liquid phase at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobile.

[0115] Comparative example 11 The air conditioner refrigerant composition suitable for automobile comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.3%, propylene (R1270) 0.3% and difluoromethane 0.3%.

[0116] The preparation method of the air conditioner refrigerant composition suitable for automobile comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in liquid phase at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobile.

[0117] Comparative example 12 The air conditioner refrigerant composition suitable for automobile comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.3%, propylene (R1270) 0.3% and difluoromethane 0.3%.

[0118] The preparation method of the air conditioner refrigerant composition suitable for automobile comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in liquid phase at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobile.

[0119] Comparative example 13 The air conditioner refrigerant composition suitable for automobile comprises the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.3%, propylene (R1270) 0.3% and difluoromethane 0.3%.

[0120] The preparation method of the air conditioner refrigerant composition suitable for automobile comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32) in liquid phase at room temperature (25 DEG C) according to the corresponding mass ratio, and obtaining the air conditioner refrigerant composition suitable for automobile.

[0121] Comparative example 14 The application provides an air conditioner refrigerant composition suitable for a vehicle, which is composed of the following components in percentage by mass: 3,3,3-trifluoropropynyl (TFP) 0.1%, propylene (R1270) 0.2%, 2,3,3,3-tetrafluoropropylene (R1234yf) 0.7%.

[0122] The preparation method comprises the following steps: physically mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270) and 2,3,3,3-tetrafluoropropylene (R1234yf) in a liquid phase state at room temperature (25 DEG C) according to corresponding mass ratios.

[0123] The air conditioner refrigerant composition suitable for a vehicle of the application is used to replace R134a and is applied to a vehicle air conditioning system (a vehicle air conditioning system). Figure 1 As shown in the figure, the selected design working conditions are as follows: the evaporator 3 evaporates at 10 DEG C, the condenser 5 condenses at 40 DEG C, the gas phase at the outlet of the evaporator 3 is overheated and the superheat degree is 5 DEG C, the liquid phase at the outlet of the condenser 5 is supercooled and the supercooling degree is 5 DEG C, and the adiabatic efficiency of the compressor is 0.75. The cycle performance parameters of the above-mentioned examples, the comparative examples and the R134a refrigerant in the air conditioning system are theoretically calculated, the physical property data are obtained from REFPROP10.0, the GWP (calculated according to the linear addition of mass percentage), the relative unit volume refrigeration / heat quantity Qv (the unit volume refrigeration / heat quantity ratio of R134a), the relative performance coefficient COP (the performance coefficient ratio of R134a) are compared, and the results are shown in the following table 4-table 5. Table 4 Performance comparison results of examples 1-18 and R134a As shown in table 4, the GWP of the air conditioner refrigerant composition suitable for a vehicle provided by the application is less than 150, the GWP value is far less than that of R134a, and the limit control requirement of the current Kigali amendment on the refrigerant can be completely met. The relative volume refrigeration quantity of the air conditioner refrigerant composition suitable for a vehicle in the examples of the application is greater than 1.7, the relative performance coefficient COP is greater than 0.9, the highest volume refrigeration quantity is increased by 190% compared with R134a, and the temperature glide control is within 2.5 DEG C. Therefore, the application provides a refrigerant with low GWP, large volume refrigeration quantity and low boiling point to replace R134a.

[0124] Table 5 Performance results of comparative examples 1-14 As can be seen from Table 5, if the air conditioner refrigerant composition for automobile prepared by using components not within the quality percentage range defined in the application (Comparative Examples 1-10) has a larger GWP value, is not as environmentally friendly as the examples, and has a temperature glide greater than 2.5℃, which is not conducive to the design of the heat exchanger. The air conditioner refrigerant composition for automobile prepared by lacking the components defined in the application (Comparative Examples 11-14) cannot simultaneously ensure the performance of GWP value and temperature glide. As can be seen, the application provides an air conditioner refrigerant composition for automobile, which is a four-component mixed refrigerant, can meet the requirements of environmental protection, high efficiency and low boiling point. The GWP is less than 150, which is an environmentally friendly mixed refrigerant, and the volumetric refrigeration capacity and thermodynamic performance are comparable to or even better than R134a refrigerant. The air conditioner refrigerant composition of the application can replace R134a, and the heating effect of the automobile in a low temperature environment will be better, solving the shortcomings of R134a in low temperature heating and poor environmental protection.

[0125] In summary, the application provides an air conditioner refrigerant composition for automobile and an air conditioner system, which has the following beneficial effects: 1. The ozone depletion potential (ODP) value is zero, the global warming potential (GWP) value is less than 150, and the environmental performance is excellent; 2. By mixing 3,3,3-trifluoropropynyl (TFP), propylene (R1270), 2,3,3,3-tetrafluoropropene (R1234yf) and difluoromethane (R32), the normal boiling point of the mixed refrigerant can be as low as-50℃ or lower, and the temperature glide is less than 2.5℃, having good refrigeration and heating performance; 3. The refrigerant unit volume refrigeration capacity of the present application is better than R134a, and the relative volume refrigeration capacity is 1.7-2.0 times that of R134a.

[0126] The above is only a specific embodiment of the application, but the protection scope of the application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the application, which should be covered within the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. An air conditioning refrigerant composition for use in automobiles, characterized by comprising The composition comprises 3,3,3-trifluoropropynyl, propylene, 2,3,3,3-tetrafluoropropylene and difluoromethane.

2. The air-conditioning refrigerant composition for use in automobiles according to claim 1, characterized by, The 3,3,3-trifluoropropynyl accounts for 52-80% by mass of the air conditioner refrigerant composition for automobile.

3. The air-conditioning refrigerant composition for use in automobiles according to claim 2, characterized by, The propylene accounts for 4-40% by mass of the air conditioner refrigerant composition for automobile.

4. The air-conditioning refrigerant composition for automobile according to claim 1, characterized by The 2,3,3,3-tetrafluoropropylene accounts for 4-8% by mass of the air conditioner refrigerant composition for automobile.

5. The air-conditioning refrigerant composition for automobile according to claim 1, characterized by The difluoromethane accounts for 4-16% by mass of the air conditioner refrigerant composition for automobile.

6. The air-conditioning refrigerant composition for automobile according to claim 1, characterized by The composition comprises 3,3,3-trifluoropropynyl 50-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropylene 3-8% and difluoromethane 4-16% by mass.

7. The air-conditioning refrigerant composition for use in automobiles according to claim 6, characterized by The composition comprises 3,3,3-trifluoropropynyl 52-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropylene 4-8% and difluoromethane 4-16% by mass.

8. The air-conditioning refrigerant composition for automotive use according to claim 1, characterized by The composition comprises 3,3,3-trifluoropropynyl 52-80%, propylene 4-40%, 2,3,3,3-tetrafluoropropylene 4-8% and difluoromethane 4-16% by mass.

9. The air-conditioning refrigerant composition for use in automobiles according to claim 1, characterized by, The air conditioner refrigerant composition for automobile has a GWP value less than 150, a boiling point lower than -50℃ and a temperature glide less than 2.5℃.

10. An air conditioning system characterized by, The air conditioner refrigerant composition for automobile comprises the composition according to any one of claims 1-9.

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